Here's a real world example of what was the subject of discussion today on Chat -- the discussion was not on this particular question and answer couple, be warned.
I'm not asking if it is a good answer or if it should be upvoted. I'm asking if it should be merely allowed to exist on this website.
I agree with badp that they should be allowed as they technically answer the question, however it should be encouraged to provide information on this site (without violating copyrights!) due to link-rot.
Furthermore, providing an excerpt helps others judge the quality of your link, without having to actually visit the site, because they know from the excerpt that it is in fact correct.
So while they should be allowed, based on my experiences on Super User though, I highly recommend everyone to add more info than just a link, since it will cost you potential upvotes
yes we should. This answer on MSO explains in length why this is a good idea.
